CN114650697A - Automatic liquid injection device - Google Patents

Abstract

The application relates to an automatic liquid injection device. In this automatic priming device, first material mount pad with annotate the liquid valve and can move relative guide respectively, and the pipe that the liquid piece was treated to annotate in the guide first guide way plays the guide effect, the guide effect is played to annotating the liquid syringe needle to the second guide way in the guide to make annotate in the liquid syringe needle can stretch into the pipe accurately, thereby treat to annotate the interior minute liquid of injecting of liquid piece under the control of annotating the liquid valve body. Therefore, the automatic liquid injection device can realize automatic liquid injection of a to-be-injected liquid piece, and compared with a manual liquid injection mode, the automatic liquid injection mode can realize micro liquid injection and can guarantee high liquid injection amount precision.

Description

Automatic liquid injection device

Technical Field

The invention relates to the technical field of micro liquid injection, in particular to an automatic liquid injection device.

Background

At present, with the thinner and smaller thickness and volume of electronic products, the thickness and size of the heat sink in the electronic products also become thinner and smaller, and in the process of manufacturing the heat sink, because only a trace amount of liquid can be injected into the heat sink, and the error requirement of the injected liquid amount is higher, for example, the injected liquid amount of the heat sink in a mobile phone is less than 20mg, and the error requirement of the injected liquid amount is controlled within ± 0.1mg, while the conventional manual liquid injection mode cannot meet the high standard requirement of the trace amount of liquid injection, and it is necessary to develop a device capable of realizing automatic liquid injection.

Disclosure of Invention

Based on this, it is necessary to provide an automatic liquid injection device.

An automatic priming device, comprising:

the first material mounting seat is used for mounting a to-be-injected liquid piece; and

the liquid injection mechanism comprises a liquid guide pipe, a guide piece and a liquid injection valve, the liquid injection valve comprises a liquid injection valve body connected with the liquid guide pipe and a liquid injection needle head connected with the liquid injection valve body, and a first guide groove and a second guide groove communicated with the first guide groove are formed in the guide piece;

the first material mounting seat can move relative to the guide piece so that a guide pipe of the to-be-injected liquid piece moves along the first guide groove, the liquid injection valve can move relative to the guide piece so that the liquid injection needle moves along the second guide groove and extends into the guide pipe, and the liquid injection valve body can control the liquid injection needle to inject the liquid injection amount of the to-be-injected liquid piece.

Among the above-mentioned automatic priming device, first material mount pad with annotate the liquid valve and can move relative guide respectively, and the pipe that the liquid piece was treated to first guide way in the guide plays the guide effect, the second guide way plays the guide effect to annotating the liquid syringe needle to make annotate in the liquid syringe needle can stretch into the pipe accurately, thereby treat to annotate the interior minute liquid of pouring into of liquid piece under the control of annotating the liquid valve body. Therefore, the automatic liquid injection device can realize automatic liquid injection of a to-be-injected liquid piece, and compared with a manual liquid injection mode, the automatic liquid injection mode can realize micro liquid injection and can guarantee high liquid injection amount precision.

In one embodiment, the liquid injection mechanism comprises a first inductor, wherein the first inductor is arranged in the guide piece and corresponds to the joint of the first guide groove and the second guide groove; the automatic liquid injection device comprises a first driving mechanism connected with the first inductor, and the first driving mechanism is connected with the first material mounting seat to drive the first material mounting seat to move.

In one embodiment, the automatic liquid injection device comprises a first straightening mechanism for straightening the guide pipe of the liquid to be injected piece, the first straightening mechanism comprises a first straightening driving assembly and two first clamping blocks, the two first clamping blocks are located between the first material mounting seat and the guide piece, and the first straightening driving assembly is connected with the two first clamping blocks so as to drive the two first clamping blocks to be close to each other to clamp the guide pipe and can drive the two first clamping blocks to be far away from the first material mounting seat.

In one embodiment, the automatic liquid injection device comprises a needle length measuring mechanism, the needle length measuring mechanism comprises an electrode plate and an electrode plate driving assembly, and the electrode plate driving assembly is connected with the electrode plate so as to drive the electrode plate to move; the electrode plate is positioned on one side of the first guide groove, and the liquid injection needle head can penetrate through the first guide groove and abut against the electrode plate.

In one embodiment, at least one of the following schemes is also included:

the liquid injection mechanism comprises a pressure stabilizer which is arranged on the liquid guide pipe so as to stabilize the liquid pressure in the liquid guide pipe;

the liquid injection mechanism comprises a heating rod embedded in the guide piece, and the heating rod is used for heating the guide piece;

the liquid injection mechanism comprises a blower, and the blower is used for blowing compressed air into the first guide groove and the second guide groove.

In one embodiment, the automatic liquid injection device comprises a second material mounting seat for mounting a to-be-injected liquid piece and a pipe depth detection mechanism for performing pipe depth detection on the to-be-injected liquid piece, wherein the pipe depth detection mechanism comprises a measuring pin and a second inductor, and the measuring pin can move relative to the second material mounting seat so as to extend into the to-be-injected liquid piece mounted on the second material mounting seat and trigger the second inductor when the measuring pin abuts against the to-be-injected liquid piece.

In one embodiment, the automatic liquid injection device comprises a second straightening mechanism for straightening the guide pipe of the liquid to be injected piece, the second straightening mechanism comprises a second straightening driving assembly and two second clamping blocks, the second straightening driving assembly is connected with the two second clamping blocks so as to drive the two second clamping blocks to approach each other to clamp the guide pipe, and the two second clamping blocks can be driven to be far away from the second material mounting seat.

In one embodiment, the tube depth detecting mechanism includes a probe driving assembly, a mounting frame, and a fixing column, the second sensor is mounted on the mounting frame, the probe is fixedly mounted on the fixing column, the fixing column is movably mounted on the mounting frame, the probe driving assembly can drive the mounting frame, the fixing column, the probe, and the second sensor to move a predetermined distance, and the second sensor can be triggered when the fixing column moves relative to the mounting frame.

In one embodiment, the tube depth detection mechanism comprises an elastic piece, the elastic piece is connected between the mounting frame and the fixed column, and the elastic piece can apply elastic acting force towards the measuring needle to the fixed column.

In one embodiment, the automatic liquid injection device further comprises a carrying mechanism, and the carrying mechanism can carry the to-be-injected liquid piece on the second material mounting seat to the first material mounting seat.

Drawings

FIG. 1 is an automatic priming apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of various mechanisms mounted on a first base frame in the automatic liquid injection device shown in FIG. 1;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

FIG. 4 is a schematic view of the fitting relationship between the filling valve, the guide member and the member to be filled shown in FIG. 2;

FIG. 5 is a schematic structural diagram of the mechanisms mounted on the second base frame in the automatic liquid injection device shown in FIG. 1;

fig. 6 is an enlarged schematic view of the structure at B in fig. 5.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 to 6, an automatic liquid injection device 10 according to an embodiment of the present invention is used for injecting a minute amount of liquid into a liquid to be injected member 90. For example, the liquid to be injected member 90 is a heat sink in an electronic product such as a tablet computer and a mobile phone, and the injected trace amount of liquid is water.

Referring to fig. 1 to 4, specifically, the automatic liquid injection device 10 includes a first material mounting seat 11 and a liquid injection mechanism 13. The first material mounting seat 11 is used for mounting a liquid to be injected piece 90. The injection mechanism 13 includes a liquid guide tube (not shown), a guide member 132 and an injection valve 133, the injection valve 133 includes an injection valve body 134 connected to the liquid guide tube and an injection needle 135 connected to the injection valve body 134, and the guide member 132 has a first guide groove 136 and a second guide groove 137 communicated with the first guide groove 136. The first material mounting seat 11 can move relative to the guide member 132 to move the guide tube 91 of the to-be-injected member 90 along the first guide groove 136, the injection valve 133 can move relative to the guide member 132 to move the injection needle 135 along the second guide groove 137 and extend into the guide tube 91, and the injection valve body 134 can control the injection amount of the injection needle 135 on the to-be-injected member 90.

In the automatic liquid injection device 10, the first material mounting seat 11 and the liquid injection valve 133 can move relative to the guide member 132, the first guide groove 136 in the guide member 132 can guide the guide tube 91 of the to-be-injected liquid piece 90, and the second guide groove 137 can guide the liquid injection needle 135, so that the liquid injection needle 135 can accurately extend into the guide tube 91, and thus, the to-be-injected liquid piece 90 is injected with micro liquid under the control of the liquid injection valve body 134. Thus, the automatic liquid injection device 10 can realize automatic liquid injection of the liquid injection piece 90 to be injected, and compared with a manual liquid injection mode, the automatic liquid injection mode can realize micro liquid injection and can ensure higher liquid injection amount precision.

Specifically, in the present embodiment, the liquid injection mechanism 13 includes a first sensor 138, and the first sensor 138 is disposed in the guiding element 132 and corresponds to a connection position of the first guiding groove 136 and the second guiding groove 137. The automatic liquid injection device 10 comprises a first driving mechanism 15 connected with the first sensor 138, and the first driving mechanism 15 is connected with the first material mounting seat 11 to drive the first material mounting seat 11 to move. Specifically, the guiding element 132 is provided with a mounting groove (not shown), the mounting groove is communicated with a joint of the first guiding groove 136 and the second guiding groove 137, and the first inductor 138 is mounted in the mounting groove to induce the catheter 91 extending to the joint of the first guiding groove 136 and the second guiding groove 137. It can be understood that when the first driving mechanism 15 drives the first material mounting seat 11 and the to-be-injected member 90 mounted thereon to move, the guide tube 91 of the to-be-injected member 90 gradually extends into the guide member 132 along the first guide groove 136 until the first sensor 138 is triggered when the first driving mechanism moves to the connection position of the first guide groove 136 and the second guide groove 137, the driving function of the first driving mechanism 15 is stopped, and at this time, the guide tube 91 moves to a position. Specifically, the first inductor 138 is an optical fiber.

Specifically, the first guide groove 136 includes a first tapered pipe section 136a and a first straight pipe section 136b, and the first straight pipe section 136b is located at one end of the first tapered pipe section 136a close to the second guide groove 137. The first tapered section 136a is tapered with a gradually decreasing diameter in a direction gradually approaching the second guide groove 137, so that the guide tube 91 is smoothly guided into the first straight section 136 b. The diameter of the first straight pipe section 136b is matched with the conduit 91 of the liquid injection member 90, and after the conduit 91 extends into the first straight pipe section 136b, the first straight pipe section 136b can limit the conduit 91 in the radial direction. Specifically, the second guide groove 137 includes a second taper section 137a and a second straight section 137b, and the second straight section 137b is located between the first straight section 136b and the second taper section 137 a. The second tapered section 137a is tapered with a gradually decreasing diameter in a direction gradually approaching the first guide groove 136, so that the injection needle 135 is smoothly guided into the second straight section 137 b. The diameter of the second straight pipe section 137b is matched with the liquid injection needle 135, and after the liquid injection needle 135 extends into the second straight pipe section 137b, the second straight pipe section 137b can limit the liquid injection needle 135 in the radial direction. Further, the diameter of the second straight pipe section 137b is smaller than that of the first straight pipe section 136b, so that a step is formed at the joint of the two, and in the process that the guide pipe 91 moves along the first straight pipe section 136b, the guide pipe 91 can be abutted against the joint of the first straight pipe section 136b and the second straight pipe section 137b, so that the guide pipe 91 is limited in the axial direction of the first straight pipe section 136 b. In addition, the second straight pipe 137b can guide the injection needle 135 well, so as to prevent the injection needle 135 from bending.

Specifically, in the present embodiment, the liquid injection mechanism 13 includes a heating rod 139 embedded in the guide 132, and the heating rod 139 is used for heating the guide 132. The guide 132 can be kept at a constant temperature by heating the heating rod 139, so that the liquid injection valve 133 can inject liquid at a constant temperature, and the liquid injection accuracy can be improved. Specifically, the heating rod 139 is plural, and the plural heating rods 139 are arranged at intervals in the axial direction of the second straight tube section 137 b. Since the second straight tube section 137b is long in length, the plurality of heating rods 139 can maintain the injection needle 135 at a constant temperature in the axial direction of the second straight tube section 137 b.

Specifically, the liquid injection mechanism 13 includes a pressure stabilizer (not shown) mounted on the liquid guide tube to stabilize the pressure of the liquid in the liquid guide tube, thereby reducing fluctuation in the pressure of the liquid in the liquid guide tube, ensuring the pressure stability of the liquid, and improving the liquid injection accuracy. Specifically, the liquid injection mechanism 13 includes a blower (not shown) for blowing compressed air into the first guide groove 136 and the second guide groove 137. Compressed air is blown into the first guide groove 136 and the second guide groove 137, so that residual liquid in the guide member 132 can be blown off, the influence of the residual liquid on the next liquid injection operation is avoided, and the liquid injection precision is ensured. In addition, after the injection operation is completed, the catheter 91 is completely withdrawn from the first guide groove 136, and the injection needle 135 is retracted and a part of the injection needle 135 needs to be remained in the second straight tube section 137b, so as to avoid the problem that the injection needle 135 is too thin and is easy to bend during the movement along the second guide groove 137.

Specifically, in this embodiment, the automatic liquid injection device 10 includes a first straightening mechanism 17 for straightening the conduit 91 of the liquid to be injected member 90, the first straightening mechanism 17 includes a first straightening driving assembly 172 and two first clamping blocks 171, the two first clamping blocks 171 are located between the first material mounting seat 11 and the guide member 132, the first straightening driving assembly 172 is connected with the two first clamping blocks 171 to drive the two first clamping blocks 171 to approach each other and clamp the conduit 91, and can drive the two first clamping blocks 171 to be away from the first material mounting seat 11. It can be understood that, treat to annotate liquid piece 90 and install the back on first material mount pad 11, two first clamp pieces 171 are close to each other and wait to annotate the pipe 91 of liquid piece 90 with the clamp jointly to keep away from first material mount pad 11 under the drive of first drive assembly 172 of flare-outing gradually, thereby realize straightening to pipe 91, and then make annotate liquid syringe needle 135 stretch into pipe 91 under the comparatively straight circumstances of pipe 91, and realize treating annotating the smooth notes liquid of liquid piece 90.

Specifically, the first straightening driving assembly 172 is a driving structure which is composed of a clamping jaw cylinder 173 capable of driving the two first clamping blocks 171 to approach or separate from each other, a connecting plate 174 connected to the clamping jaw cylinder 173, and a linear cylinder 175 connected to the connecting plate 174 and driving the clamping jaw cylinder 173 to move between the first material mounting base 11 and the guide 132 through the connecting plate 174. Specifically, the automatic liquid injection device 10 includes a first base frame 19, the guide member 132 and the linear cylinder 175 are all fixedly mounted on the first base frame 19, and the connecting plate 174 is slidably connected with the first base frame 19 through the cooperation of the sliding blocks and the sliding rails, so as to ensure the motion smoothness of the two first clamping blocks 171. Specifically, the first driving mechanism 15 is a driving structure composed of a motor 151, a slide rail 152, a slide block 153, and a support seat 154; the first material mounting seat 11 is mounted on the support 154 so as to be capable of moving along with the support 154; the supporting seat 154 is slidably connected to the first base frame 19, so as to ensure the moving smoothness of the first material mounting seat 11. Specifically, the liquid injection mechanism 13 includes a liquid injection valve driving assembly 141, and the liquid injection valve driving assembly 141 is a driving structure composed of a motor 142, a slide rail 143, a slide block 144, and a connecting plate 145; the injection valve body 134 is mounted on the connection plate 145 to drive the injection needle 135 to move along with the connection plate 145.

Specifically, in this embodiment, the automatic liquid injection device 10 includes a needle length measuring mechanism 21, the needle length measuring mechanism 21 includes an electrode plate 211 and an electrode plate driving assembly 212, and the electrode plate driving assembly 212 is connected to the electrode plate 211 to drive the electrode plate 211 to move; the electrode plate 211 is located at one side of the first guide groove 136, and the injection needle 135 can penetrate through the first guide groove 136 to be abutted against the electrode plate 211. It will be appreciated that after the injection needle 135 is damaged or worn and replaced, the length of the injection needle 135 needs to be corrected to ensure that the depth of insertion of the injection needle 135 into the catheter 91 is constant during injection.

Specifically, the electrode plate 211 is driven by the electrode plate driving assembly 212 to move, so that the electrode plate 211 is opposite to the first guiding groove 136, and abuts against the electrode plate 211 after the injection needle 135 can move from the second guiding groove 137 to the first guiding groove 136 and penetrate through the first guiding groove 136. Specifically, the electrode plate 211 is connected to the negative electrode, the injection needle 135 is connected to the positive electrode, and when the injection needle 135 is pressed against the electrode plate 211 to achieve current conduction, the length of the injection needle 135 can be obtained. It can be understood that, because the liquid injection valve body 134 and the liquid injection needle 135 move under the driving of the liquid injection valve driving component 141, when the liquid injection needle 135 is pressed against the electrode plate 211 to realize current conduction, the driving action of the liquid injection valve driving component 141 is stopped, and the length of the liquid injection needle 135 can be obtained by recording the position of the slide block in the liquid injection valve driving component 141 on the slide rail and calculating the difference between the position and the standard length of the liquid injection needle 135 corresponding to the standard position. So, annotate liquid valve drive assembly 141 drive and annotate liquid syringe needle 135 and when moving along second guide slot 137, can annotate liquid syringe needle 135 through the drive and remove different distances to compensate the change of its length, thereby guarantee that the degree of depth that the liquid syringe needle 135 of annotating of different lengths can stretch into pipe 91 is unchangeable, treat to annotate liquid piece 90 with more unanimous state and annotate liquid, improve when guaranteeing that trace annotate liquid operation goes on smoothly and annotate the liquid precision.

Referring to fig. 1, 5, and 6, in this embodiment, the automatic liquid injection device 10 includes a second material mounting seat 23 for mounting a to-be-injected liquid 90, and a pipe depth detection mechanism 25 for performing pipe depth detection on the to-be-injected liquid 90. The tube depth detection mechanism 25 includes a probe 251 and a second sensor 252, the probe 251 can move relative to the second material mounting seat 23 to extend into the to-be-injected liquid piece 90 mounted on the second material mounting seat 23, and the second sensor 252 is triggered when the probe abuts against the to-be-injected liquid piece 90. Through setting up the dark detection mechanism 25 of pipe, can treat earlier and annotate liquid piece 90 and detect before annotating the liquid operation, to the up-to-standard liquid piece 90 of annotating of inside degree of depth, can carry out again and annotate the liquid operation, to the up-to-standard liquid piece 90 of annotating of inside degree of depth treating, can judge that it is the NG material and is screened out.

Specifically, the tube depth detecting mechanism 25 includes a probe driving assembly 253, a mounting bracket 254 and a fixing post 255, the second sensor 252 is mounted on the mounting bracket 254, the probe 251 is fixedly mounted on the fixing post 255, the fixing post 255 is movably mounted on the mounting bracket 254, the probe driving assembly 253 can drive the mounting bracket 254, the fixing post 255, the probe 251 and the second sensor 252 to move a predetermined distance, and the second sensor 252 can be triggered when the fixing post 255 moves relative to the mounting bracket 254. Under the driving action of the probe driving assembly 253, the mounting frame 254, the fixed column 255, the probe 251 and the second sensor 252 all move synchronously, when the probe 251 abuts against the inside of the liquid to be injected piece 90, the fixed column 255 moves relative to the mounting frame 254, and once the fixed column 255 moves relative to the mounting frame 254, the second sensor 252 is triggered. Thus, when the stylus driving component 253 drives the stylus 251 to move for a predetermined distance, the second sensor 252 is triggered, the to-be-injected piece 90 is qualified, and when the stylus driving component 253 drives the stylus 251 to move for less than the predetermined distance and the second sensor 252 is triggered, it means that the to-be-injected piece 90 has insufficient depth and is NG material. Specifically, the second inductor 252 is a grating. The probe driving assembly 253 is a driving structure which is composed of a motor 256, a slide rail 257, a slide block 258 and a connecting plate 259. The mounting bracket 254 is mounted on the connecting plate 259 for driving the fixing post 255, the probe 251 and the second sensor 252 to move along with the connecting plate 259. Specifically, the automatic liquid injection device 10 comprises an NG material box 27, and the NG material box 27 is used for collecting NG materials.

Further, a step-shaped movable channel (not shown) is formed in the mounting frame 254 in a penetrating manner, the fixed column 255 penetrates through the movable channel, a cap end is arranged at one end, away from the probe 251, of the fixed column 255 and can abut against the step in the movable channel, and the second sensor 252 is arranged close to the cap end of the fixed column 255. When the stylus 251 abuts against the liquid injection member 90, the mounting bracket 254 is driven to move continuously by the stylus driving assembly 253, and the fixing column 255 moves relative to the mounting bracket 254, so that the cap end can touch the second sensor 252 to trigger the second sensor 252.

Specifically, the tube depth detection mechanism 25 includes an elastic member 261, the elastic member 261 is connected between the mounting bracket 254 and the fixed column 255, and the elastic member 261 can apply an elastic force toward the probe 251 to the fixed column 255. When the measuring pin 251 is not in contact with the liquid injection member 90, the fixing column 255 can be abutted against the mounting frame 254 under the elastic action of the elastic member 261 to keep the measuring pin 251 at a fixed position. Moreover, when the stylus 251 abuts against the to-be-injected liquid piece 90 and the fixing column 255 moves for a certain distance relative to the mounting frame 254, if the stylus 251 is separated from the to-be-injected liquid piece 90, the elastic force applied by the elastic piece 261 to the fixing column 255 can also force the fixing column 255 to reset relative to the mounting frame 254 and keep at the initial fixed position. Specifically, the elastic element 261 is a spring sleeved on the fixing post 255.

In this embodiment, the automatic liquid injection device 10 includes a second straightening mechanism 29 for straightening the guide tube 91 of the liquid to be injected 90, the second straightening mechanism 29 includes a second straightening driving assembly 292 and two second clamping blocks 291, the second straightening driving assembly 292 is connected to the two second clamping blocks 291 to drive the two second clamping blocks 291 to approach each other to clamp the guide tube 91, and can drive the two second clamping blocks 291 to move away from the second material mounting seat 23. It can be understood that, after the liquid to be injected piece 90 is installed on the second material installation seat 23, the two second clamping blocks 291 are close to each other to clamp the conduit 91 of the liquid to be injected piece 90 together, and are gradually far away from the second material installation seat 23 under the driving of the second straightening driving assembly 292, so that the conduit 91 is straightened, the probe 251 is further extended into the conduit 91 under the condition that the conduit 91 is relatively straight, and the smooth detection of the liquid to be injected piece 90 is realized. Specifically, the second straightening driving assembly 292 is a driving structure which is composed of a clamping jaw cylinder 293 capable of driving the two second clamping blocks 291 to approach or separate from each other, a connecting plate 294 connected to the clamping jaw cylinder 293, and a linear cylinder 295 connected to the connecting plate 294 and driving the clamping jaw cylinder 293 to separate from the second material mounting seat 23 through the connecting plate 294.

Specifically, the automatic liquid injection device 10 includes a second driving mechanism 31, and the second driving mechanism 31 is connected to the second material mounting seat 23 to drive the second material mounting seat 23 to move, so that the second material mounting seat 23 moves from the loading position to the operating position opposite to the two second clamping blocks 291.

In this embodiment, the automatic liquid filling device 10 further includes a conveying mechanism 33, and the conveying mechanism 33 can convey the liquid to be filled 90 on the second material mounting seat 23 to the first material mounting seat 11. Specifically, the conveyance mechanism 33 is a six-axis robot. The conveying mechanism 33 includes a robot 331 and a robot 332 connected to the robot 331, and the robot 332 has a suction nozzle and conveys the injection article 90 by suction. Specifically, the first material mounting seat 11 and the second material mounting seat 23 are both provided with an accommodating groove (not shown) for accommodating the to-be-injected liquid 90, and the bottom of the accommodating groove is provided with an air hole, so that the to-be-injected liquid 90 is adsorbed and locked in the accommodating groove by providing an air nozzle communicated with the air hole, thereby realizing the installation of the to-be-injected liquid 90 on the first material mounting seat 11 and the second material mounting seat 23.

As shown in fig. 1, in this embodiment, the automatic liquid injection device 10 includes a frame 35, a first base frame 19 is erected on the frame 35, and the first material mounting seat 11, the first driving mechanism 15, the liquid injection mechanism 13, the first straightening mechanism 17, and the needle length measuring mechanism 21 are all mounted on the first base frame 19. The automatic liquid injection device 10 comprises a second base frame 37, the second base frame 37 is mounted on the frame 35, and the second material mounting seat 23, the second driving mechanism 31, the pipe depth detecting mechanism 25 and the second straightening mechanism 29 are all mounted on the second frame 35. The first base frame 19 and the second base frame 37 are disposed at an interval, and the carrying mechanism 33 is mounted on the frame 35 and located between the first base frame 19 and the second base frame 37.

Specifically, the automatic liquid injection device 10 includes a reservoir 39 for storing liquid to be injected, and the reservoir 39 is mounted on the frame 35 and connected to a liquid conduit in the liquid injection mechanism 13 to supply liquid to the liquid conduit. Further, the reservoir 39 is capable of detecting the conductivity of the stored liquid. The automatic filling device 10 includes a monitor (not shown) mounted to the reservoir 39 to monitor the conductivity sensed by the reservoir 39. The monitor can clearly know the conductivity of the liquid and timely process the abnormal conductivity, so that the conductivity of the liquid is kept stable, and the liquid injection precision is improved.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. An automatic priming device, characterized by comprising:

the first material mounting seat is used for mounting a to-be-injected liquid piece; and

the liquid injection mechanism comprises a liquid guide pipe, a guide piece and a liquid injection valve, the liquid injection valve comprises a liquid injection valve body connected with the liquid guide pipe and a liquid injection needle head connected with the liquid injection valve body, and a first guide groove and a second guide groove communicated with the first guide groove are formed in the guide piece;

the first material mounting seat can move relative to the guide piece so that a guide pipe of the to-be-injected liquid piece moves along the first guide groove, the liquid injection valve can move relative to the guide piece so that the liquid injection needle moves along the second guide groove and extends into the guide pipe, and the liquid injection valve body can control the liquid injection amount of the liquid injection needle on the to-be-injected liquid piece.

2. The automatic liquid injection device according to claim 1, wherein the liquid injection mechanism comprises a first sensor, the first sensor is arranged in the guide member and corresponds to a connection position of the first guide groove and the second guide groove; the automatic liquid injection device comprises a first driving mechanism connected with the first inductor, and the first driving mechanism is connected with the first material mounting seat to drive the first material mounting seat to move.

3. The automatic liquid injection device according to claim 1, wherein the automatic liquid injection device comprises a first straightening mechanism for straightening the guide tube of the liquid to be injected, the first straightening mechanism comprises a first straightening driving assembly and two first clamping blocks, the two first clamping blocks are located between the first material mounting seat and the guide member, and the first straightening driving assembly is connected with the two first clamping blocks so as to drive the two first clamping blocks to approach each other to clamp the guide tube and drive the two first clamping blocks to be away from the first material mounting seat.

4. The automatic liquid injection device according to claim 1, wherein the automatic liquid injection device comprises a needle length measuring mechanism, the needle length measuring mechanism comprises an electrode plate and an electrode plate driving assembly, and the electrode plate driving assembly is connected with the electrode plate to drive the electrode plate to move; the electrode plate is positioned on one side of the first guide groove, and the liquid injection needle head can penetrate through the first guide groove and abut against the electrode plate.

5. The automatic liquid injection device according to claim 1, further comprising at least one of the following:

the liquid injection mechanism comprises a pressure stabilizer which is arranged on the liquid guide pipe so as to stabilize the liquid pressure in the liquid guide pipe;

the liquid injection mechanism comprises a heating rod embedded in the guide piece, and the heating rod is used for heating the guide piece;

the liquid injection mechanism comprises a blower, and the blower is used for blowing compressed air into the first guide groove and the second guide groove.

6. The automatic liquid injection device according to claim 1, wherein the automatic liquid injection device comprises a second material mounting seat for mounting a to-be-injected liquid piece and a pipe depth detection mechanism for detecting pipe depth of the to-be-injected liquid piece, the pipe depth detection mechanism comprises a probe and a second sensor, and the probe can move relative to the second material mounting seat to extend into the to-be-injected liquid piece mounted on the second material mounting seat and trigger the second sensor when abutting against the to-be-injected liquid piece.

7. The automatic liquid injection device according to claim 6, wherein the automatic liquid injection device comprises a second straightening mechanism for straightening the guide tube of the liquid to be injected piece, the second straightening mechanism comprises a second straightening driving assembly and two second clamping blocks, and the second straightening driving assembly is connected with the two second clamping blocks so as to drive the two second clamping blocks to approach each other to clamp the guide tube and drive the two second clamping blocks to be away from the second material mounting seat.

8. The automatic liquid injection device according to claim 6, wherein the tube depth detection mechanism includes a probe driving assembly, a mounting frame and a fixing column, the second sensor is mounted on the mounting frame, the probe is fixedly mounted on the fixing column, the fixing column is movably mounted on the mounting frame, the probe driving assembly can drive the mounting frame, the fixing column, the probe and the second sensor to move for a predetermined distance, and the second sensor can be triggered when the fixing column moves relative to the mounting frame.

9. The automatic liquid injection device according to claim 8, wherein the tube depth detection mechanism comprises an elastic member, the elastic member is connected between the mounting frame and the fixed column, and the elastic member can apply an elastic acting force to the fixed column towards the measuring pin.

10. The automatic liquid injection device according to claim 6, further comprising a carrying mechanism capable of carrying the liquid to be injected on the second material mounting seat to the first material mounting seat.

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